BR8700297A - Processo para a preparacao de pirocatequina e de hidroquinona - Google Patents
Processo para a preparacao de pirocatequina e de hidroquinonaInfo
- Publication number
- BR8700297A BR8700297A BR8700297A BR8700297A BR8700297A BR 8700297 A BR8700297 A BR 8700297A BR 8700297 A BR8700297 A BR 8700297A BR 8700297 A BR8700297 A BR 8700297A BR 8700297 A BR8700297 A BR 8700297A
- Authority
- BR
- Brazil
- Prior art keywords
- hydrogen peroxide
- preparation
- pirocatchin
- hydroquinone
- phenol
- Prior art date
Links
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 abstract 2
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 abstract 2
- 230000033444 hydroxylation Effects 0.000 abstract 1
- 238000005805 hydroxylation reaction Methods 0.000 abstract 1
- 235000010269 sulphur dioxide Nutrition 0.000 abstract 1
- 239000004291 sulphur dioxide Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/60—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by oxidation reactions introducing directly hydroxy groups on a =CH-group belonging to a six-membered aromatic ring with the aid of other oxidants than molecular oxygen or their mixtures with molecular oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863602180 DE3602180A1 (de) | 1986-01-25 | 1986-01-25 | Verfahren zur herstellung von brenzkatechin und hydrochinon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8700297A true BR8700297A (pt) | 1987-12-08 |
Family
ID=6292582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8700297A BR8700297A (pt) | 1986-01-25 | 1987-01-23 | Processo para a preparacao de pirocatequina e de hidroquinona |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5026925A (enrdf_load_html_response) |
| EP (1) | EP0230625B1 (enrdf_load_html_response) |
| JP (1) | JPS62178531A (enrdf_load_html_response) |
| AT (1) | ATE40984T1 (enrdf_load_html_response) |
| BE (1) | BE906063A (enrdf_load_html_response) |
| BR (1) | BR8700297A (enrdf_load_html_response) |
| DE (2) | DE3602180A1 (enrdf_load_html_response) |
| ES (1) | ES2007296B3 (enrdf_load_html_response) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3308726C2 (de) * | 1983-03-11 | 1991-01-24 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von Dihydroxybenzolen |
| DE3643206C1 (de) * | 1986-12-18 | 1988-03-24 | Degussa | Verfahren zur Herstellung von substituierten Dihydroxybenzolen |
| KR100394582B1 (ko) * | 1995-11-03 | 2003-11-20 | 삼성종합화학주식회사 | 카테콜과히드로퀴논의제조방법 |
| FR2971783B1 (fr) * | 2011-02-17 | 2013-02-15 | Rhodia Operations | Procede d'hydroxylation de phenols et d'ethers de phenols |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2616791A (en) * | 1950-09-30 | 1952-11-04 | Glidden Co | Process for preparing selenium dioxide |
| FR2071464A5 (enrdf_load_html_response) * | 1969-12-30 | 1971-09-17 | Rhone Poulenc Sa | |
| DE2138735A1 (de) * | 1971-08-03 | 1973-03-01 | Haarmann & Reimer Gmbh | Verfahren zur herstellung von polyhydroxybenzolen |
| US3953530A (en) * | 1972-01-10 | 1976-04-27 | S. A. Texaco Belgium N.V. | Process for making o- and p-chlorophenols |
| FR2201279B1 (enrdf_load_html_response) * | 1972-09-28 | 1975-03-14 | Rhone Poulenc Ind | |
| DE2410742C3 (de) * | 1974-03-06 | 1981-01-08 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Brenzkatechin und Hydrochinon durch Kernhydroxylierung von Phenol |
| DE3308763C2 (de) * | 1983-03-11 | 1985-01-24 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von Dihydroxybenzolen |
| DE3308769C2 (de) * | 1983-03-11 | 1985-01-24 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von Dihydroxybenzolen |
| DE3308737C2 (de) * | 1983-03-11 | 1985-01-24 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von Brenzcatechin und Hydrochinon |
-
1986
- 1986-01-25 DE DE19863602180 patent/DE3602180A1/de active Granted
- 1986-12-18 DE DE8686117703T patent/DE3662187D1/de not_active Expired
- 1986-12-18 ES ES86117703T patent/ES2007296B3/es not_active Expired - Lifetime
- 1986-12-18 AT AT86117703T patent/ATE40984T1/de not_active IP Right Cessation
- 1986-12-18 EP EP86117703A patent/EP0230625B1/de not_active Expired
- 1986-12-29 BE BE0/217617A patent/BE906063A/fr not_active IP Right Cessation
-
1987
- 1987-01-20 JP JP62009203A patent/JPS62178531A/ja active Pending
- 1987-01-23 BR BR8700297A patent/BR8700297A/pt unknown
- 1987-01-27 US US07/007,351 patent/US5026925A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2007296B3 (es) | 1990-08-16 |
| BE906063A (fr) | 1987-06-29 |
| DE3602180A1 (de) | 1987-07-30 |
| DE3602180C2 (enrdf_load_html_response) | 1987-10-29 |
| EP0230625B1 (de) | 1989-03-01 |
| EP0230625A1 (de) | 1987-08-05 |
| JPS62178531A (ja) | 1987-08-05 |
| ATE40984T1 (de) | 1989-03-15 |
| US5026925A (en) | 1991-06-25 |
| DE3662187D1 (en) | 1989-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2127253T3 (es) | Procedimiento para la produccion de fenol, acetona y alfa-metilestireno. | |
| ES2139047T3 (es) | Procedimiento para preparar una cicloalcanona y/o un cicloalcanol. | |
| BR8700297A (pt) | Processo para a preparacao de pirocatequina e de hidroquinona | |
| BR8700701A (pt) | Processo para a fabricacao de hidroxilaminas n,n-dissubstituidas,e,respectivas hidroxilaminas | |
| BR9002279A (pt) | Processo de tratamento de aguas servidas industriais que contem cianeto para a conversao de substancias toxicas de cianeto em materiais nao toxicos | |
| MX9206265A (es) | Procedimiento biosintetico para la preparacion de compuestos quimicos. | |
| ZA87483B (en) | Method for the preservation of wood | |
| KR890012959A (ko) | 3-(2-히드로페록시-2-프로필)페놀 및 이를 이용한 레조르시놀의 제조 방법 | |
| BR8400948A (pt) | Processo para a obtencao de dihidroxibenzenos | |
| BR9906894A (pt) | Processo para preparar n-fenilquinona-imina. | |
| BR8703641A (pt) | Processo de cloracao pelo cloro gasoso de compostos fenolicos | |
| CO5050334A1 (es) | (7alfa, 17beta)-[[(trans-4-butilciclohexil)carbonil]oxi]-7- metilestr-4- en -3-ona (ment buciclato) y cicloalquil esteres relacionados que se usan para tratar la insuficien- cia de androgenos | |
| FI862258L (fi) | Vetyperoksidia (H202) muodostava sarkosinoksidaasi, sen valmistaminen ja käyttö | |
| ATE58519T1 (de) | Herstellung von trichlorphenol. | |
| AR245692A1 (es) | Procedimiento para la preparacion del acido 4,4'-dinitroestilben-2,2'-disulfonico. | |
| ES2060298T3 (es) | La produccion de metilaminas. | |
| ES2044730T3 (es) | Procedimiento para la purifificacion de indigo. | |
| FR2643633B1 (fr) | Procede d'hydroxylation de phenols et d'ethers de phenols | |
| DE3760087D1 (en) | Process for the production of trihydroxy-benzenes | |
| AU3732689A (en) | Methylation of organic compounds | |
| EP0210470B1 (en) | Process for the preparation of 1-pyrazolines | |
| ES2035931T3 (es) | Procedimiento e instalacion de tratamiento con oxigeno de efluentes gaseosos que contienen dioxido de azufre. | |
| IT1223169B (it) | Procedimento per la preparazione di monoeteri di idrochinoni | |
| WANG | RFLATION OF PRIMARY GLAUCOMA AND HEMORHEOLOGY | |
| ES2056236T3 (es) | Procedimiento de preparacion de cloranilo. |